low Idle, lumpy Revs? 600

[172head]

basically my 172 was missfiring popping while driving at mainly in higher revs, and idling low/lumpy. i changed the Saprk plugs to Bosch Super 4s and the popping / miss firing has stopped however its idling at about 600revs after a good 5mins is this normal?

also could the injectors possibly being clogged causing this? as when i got the Car it was left standing for 5 days with the petrol gauge in the Red (stupid Dealer pr!ck) lol im going to add injector cleaner to a full tank (is this worth a try?)

thanks peeps

 

[fil_b]

both are good try

but the NKG are the recommended for the 172

k-tec sell them cheaper than the dealer

 

[172head]

both are good try

but the NKG are the recommended for the 172

k-tec sell them cheaper than the dealer

Thanks for the response, i will put some NGK plugs in soon, doin gthe Injector cleaner tonight, im more interested to know where other peoples 172s Idle, i always thought cars should idle at 800rpm

 

[TOGUSA]

mine idels about 650- 700 but its really lumpy even when its warmed up, thats on the bosh plugs, wish it was smoother, mabey etter when i sort out a remap

 

[fil_b]

a fastchip remap changes the idle to 900rmp and does help loads

 

[Christophe]

mine idles at 800revs and is rough. sometimes idles above 1k which is why my car is fucked

 

[Speedstar]

I ordered 4 sparkplugs on ebay a few days ago . Should arive today (H).

http://cgi.ebay.co.uk/PFR6E-10-NGK-...2081697QQcmdZViewItem?_trksid=p3286.m20.l1116

7.30 + 1.20 postage x 4 = 34 quid incl vat

The type is 3688
http://www.ngkpartfinder.co.uk/car_...T&model=CLIO%202%20%2898--%3E01%29&engine=2.0